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Similarly, grammar has syntactic rules guiding the placement of words in a sentence. If you shuffle the words in the sentence “I ran to the store to buy some milk” to “Store I to milk to ran the buy some,” your meaning becomes unclear. Grammatical rules differ among languages. Native speakers of English, for example, must remember that the grammar of Romance languages (such as French and Spanish) requires a different syntax. For example, in English, adjectives typically precede a noun (“I have an intelligent dog”), whereas in Spanish, adjectives follow the noun (“Tengo un perro intelegente,” literally translated as “I have a dog intelligent”). To communicate clearly in Spanish, an English speaker must adjust.
Excellent grammar on its own will not automatically make you an outstanding communicator. Telling your professor in perfect English that her style of dress is a sorry flashback to the 1980s is still offensive and inappropriate. That’s because competent communicators also consider the situational, relational, and cultural contexts whenever they use language.